About the Authors

Baozeng Fu

Roles Writing – original draft

Affiliations Institute of Complexity Science, School of Automation, Qingdao University, Qingdao, Shandong Province, China, Shandong Key Laboratory of Industrial Control Technology, Jinan, China

Qingzhi Wang

Roles Writing – review & editing

wangqingz2007@163.com

Affiliations Institute of Complexity Science, School of Automation, Qingdao University, Qingdao, Shandong Province, China, Shandong Key Laboratory of Industrial Control Technology, Jinan, China

Ping Li

Roles Writing – review & editing

Affiliation College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao, Shandong Province, China

Competing Interests

The authors have declared that no competing interests exist.